1A2B

HUMAN RHOA COMPLEXED WITH GTP ANALOGUE

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5P21	PDB ENTRY 5P21

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	277	CRYSTALS WERE OBTAINED AT 277 K BY THE HANGING-DROP VAPOR DIFFUSION METHOD FROM SOLUTIONS CONTAINING 10 MG/ML(PROTEIN,GTPGAMMAS,MG2+ MIXTURE), 10% PEG 8000,7.5% 14-DIOXANE, 50 MM TRIS-HCL PH 8.5, EQUILIBRATED AGAINST 20% PEG 8000,15% 14-DIOXANE, 100 MM TRIS-HCL PH 8.5, vapor diffusion - hanging drop

Crystal Properties
Matthews coefficient	Solvent content
2.77	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.02	α = 90
b = 74.78	β = 90
c = 50.52	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	283	IMAGE PLATE	RIGAKU RAXIS IIC		1997-03-25	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.4		89.3	0.0875	7.91			8683		1	31.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.4	2.5	74.8		0.267	2.04

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 5P21	2.4	15	1	8382	893	86.7	0.195	0.195	0.268	RANDOM	43.5

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	22.36
x_angle_deg	1.314
x_improper_angle_d	1.099
x_bond_d	0.01
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1417
Nucleic Acid Atoms
Solvent Atoms	38
Heterogen Atoms	33

Software

Software
Software Name	Purpose
PROCESS	data collection
PROCESS	data reduction
X-PLOR	model building
X-PLOR	refinement
PROCESS	data scaling
X-PLOR	phasing